An upper low that settled over southern NV/UT encouraged the return of greater thunderstorm coverage during this period with near severe storms bringing heavy rain and flash flood concerns to the region. These strong storm cells also brought along gusty, erratic winds, small hail, and plenty of lightning.
Every event with a place to put it. Tap one for its entry below.
Deaths and injuries are direct and indirect together, as the offices filed them. Damage is property and crops in the dollars of the year, not adjusted for inflation, and only where an office estimated it.
The episode as NWS REV wrote it up.
An upper low that settled over southern NV/UT encouraged the return of greater thunderstorm coverage during this period with near severe storms bringing heavy rain and flash flood concerns to the region. These strong storm cells also brought along gusty, erratic winds, small hail, and plenty of lightning. Slightly below normal temperatures continued before returning to near normal the middle of upcoming week.
The local office's own words before the first event, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
NWS Reno, NV wrote its last area forecast discussion before the first event at Jun 11, 12:48 PM PST, 8 hours 12 minutes earlier.
Area Forecast Discussion National Weather Service Reno NV 148 PM PDT Sun Jun 11 2023 .SYNOPSIS... Widespread thunderstorm coverage with elevated concerns for flash flooding continues through Monday. Storms will be capable of producing heavy rainfall, frequent lightning, small hail, and gusty outflow winds. Thunderstorm chances decrease slightly Tuesday and become more isolated from Wednesday through the end of the week with temperatures warming back towards seasonal levels. && .DISCUSSION... The closed upper-level low will continue to influence the pattern through Monday as it slowly traverses eastward through the desert southwest. This morning's upper air analysis reveals the low tracking onshore into southern California, which has increased moist, southeasterly flow over the region. This increased moisture availability, in conjunction with modest instability (CAPE approaching 1000 J/kg) and synoptic forcing, will lead to widespread shower and thunderstorm coverage through Monday. * The major threat through Monday is the risk for flash flooding, mainly for far western Nevada including the Greater Reno-Carson City area, the Sierra, and northeast California. High-resolution guidance indicates PWATs will increase to 0.7-0.9" today, perhaps exceeding 1.0" by Monday. Slightly slower storm motions are expected today, and with a favorable environment for more organized storms, rainfall rates exceeding 1" per hour are possible. As soils are already saturated from snowmelt and recent rainfall, it will not take considerable accumulation to trigger flash flooding. Take extra care near burn scars or area creeks and streams that are already running high, as conditions can rapidly deteriorate. A Flash Flood Watch was hoisted through Monday evening to highlight this threat. * The other threat includes potential for severe thunderstorms, especially over the west-central Basin & Range this afternoon. Forecast soundings over this area shows the most robust instability, a dry sub-cloud layer with an inverted-V profile, and steep lapse rates. These parameters align with the potential for potentially severe wind gusts up to 60 mph this afternoon. The SPC has highlighted this area today under a Marginal Risk due to this wind threat. Increased moisture across the region decreases chances for severe thunderstorms on Monday, but gusty winds, small hail, and heavy rainfall are still possible. On Tuesday, the low will propagate eastward out of our region. While we won't have support from the synoptic pattern, residual high moisture availability and surface heating will enable scattered showers and thunderstorms to develop Tuesday afternoon. Thunderstorm chances trend downward through the remainder of the week as drier northwesterly flow prevails over the region. However, blended guidance suggests 20-30% chances for storms each afternoon through Friday, mainly for areas south of US-50. -Whitlam && .AVIATION... * An active thunderstorm pattern is expected at least through Monday with a a higher likelihood of MVFR-IFR conditions and heavy raining storms. There will be a 50-80% chance for thunderstorms this afternoon and early evening. Mostly like timeframe for thunderstorms to impact the terminals will be between 22z-03z today. * Storms out in the lower desert areas including KHTH-KNFL-KLOL will be capable of hail and strong outflow winds to 45+ kts which could stir up blowing dust and a brief period of greatly reduced visibility. For storms closer to the Sierra including KRNO-KCXP-KMEV, very heavy rain and the possibility of lots of small hail will be the primary concerns although erratic wind gusts to 30-35 kts will also be possible. * Widespread thunderstorm will re-fire on Monday with heavy rainfall, small hail and gusty outflow winds. Thunderstorm coverage should decrease by mid-week with some drying occurring. However, we may not completely get out of this stormy pattern with isolated showers and storms still possible, particularly for areas south of Hwy 50. Fuentes && .HYDROLOGY... * Flash flooding is the primary concern with potential for heavy rain and slow moving storms through Monday. Areas that are particularly prone are recent burn areas and creeks and streams already near bankfull with ongoing snowmelt. Flash flooding is also a concern in areas that received high amounts of rainfall on Saturday. Keep in mind that hydrologic modeling for rivers cannot fully account for the convective precipitation anticipated with storms. * Otherwise moderate flooding continues along the Walker near Mason and is expected to stay fairly level through the weekend outside of added runoff from localized thunderstorms. The earlier crest at Wabuska will take a day or two to reach Weber Reservoir. Additional future rises along the Walker are likely with prolonged flooding expected to last into July. * High flows to continue along the west fork of the Carson, but the current forecast keeps the rivers below flood stage. Minor flooding is ongoing along the lower Humboldt at Imlay with a few inches of water flowing over Tungsten Road. Flows at Imlay are expected to rise slightly into next week, remain in minor flood stage, before very slowly receding. * Creeks and streams areawide will continue to run high, cold, and fast; with some potentially out of banks especially throughout portions of Mono County. As a result, banks may be unstable and any debris can send flows into unexpected areas, so take caution near waterway edges. -Bardsley/McKellar && .REV Watches/Warnings/Advisories... NV...Flood Watch through Monday evening NVZ001>003. CA...Flood Watch through Monday evening CAZ071>073. &&
Special Weather Statement
National Weather Service Reno NV
602 PM PDT Sun Jun 11 2023
NVZ003-004-120200-
Western Nevada Basin and Range including Pyramid Lake NV-
Greater Reno-Carson City-Minden Area NV-
602 PM PDT Sun Jun 11 2023
...A thunderstorm with strong northwest winds will impact Pyramid
Lake through 700 PM PDT...
At 600 PM PDT, Doppler radar was tracking a strong thunderstorms
near the north shore of Pyramid Lake, moving southeast at 30 to 40
mph.
HAZARD...Wind gusts in excess of 40 mph, and rough water with waves
of 2 to 4 feet.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Pyramid Lake, Nixon, Sutcliffe and The Needle Rocks.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If on or near Pyramid Lake, get out of the water and move indoors or
inside a vehicle. Remember, lightning can strike out to 10 miles
from the parent thunderstorm. Boaters can expect sudden increases in
wind and wave heights on the lake through 7 PM.
&&
LAT...LON 4011 11979 4022 11960 3990 11924 3978 11933
3978 11948
TIME...MOT...LOC 0100Z 324DEG 33KT 4011 11964
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...40 MPH
CSSpecial Weather Statement
National Weather Service Reno NV
606 PM PDT Sun Jun 11 2023
NVZ004-120145-
Western Nevada Basin and Range including Pyramid Lake NV-
606 PM PDT Sun Jun 11 2023
...A strong thunderstorm will impact portions of west central
Churchill and northern Lyon Counties through 645 PM PDT...
At 602 PM PDT, Doppler radar was tracking a strong thunderstorm over
Lahontan Reservoir, moving southwest at 25 mph.
HAZARD...Winds in excess of 30 mph.
SOURCE...Radar indicated.
IMPACT...Gusty winds could knock down tree limbs and blow around
unsecured objects.
Locations impacted include...
Fallon, Lahontan Reservoir, Silver Springs, Junction U.S 50 And NV
117 (sheckler Cutoff), Us 50 At Lyon-Churchill Co Line and Silver
Springs Airport.
PRECAUTIONARY/PREPAREDNESS ACTIONS...
If outdoors, consider seeking shelter inside a building.
Frequent cloud to ground lightning is occurring with this storm.
Lightning can strike 10 miles away from a thunderstorm. Seek a safe
shelter inside a building or vehicle.
If on or near Lahontan Reservoir, get out of the water and move
indoors or inside a vehicle. Remember, lightning can strike out to
10 miles from the parent thunderstorm. If you can hear thunder, you
are close enough to be struck by lightning. Move to safe shelter
now! Do not be caught on the water in a thunderstorm.
&&
LAT...LON 3958 11901 3947 11870 3931 11889 3923 11905
3940 11935 3951 11918
TIME...MOT...LOC 0102Z 049DEG 20KT 3945 11907
MAX HAIL SIZE...0.00 IN
MAX WIND GUST...30 MPH
AYPreliminary Local Storm Report
National Weather Service Reno NV
922 PM PDT Sun Jun 11 2023
..TIME... ...EVENT... ...CITY LOCATION... ...LAT.LON...
..DATE... ....MAG.... ..COUNTY LOCATION..ST.. ...SOURCE....
..REMARKS..
0903 PM Rain 3 N Meyers 38.90N 120.00W
06/11/2023 M0.46 inch El Dorado CA ASOS
ASOS station KTVL South Lake Tahoe Ap.
0900 PM Rain 2 NNW Floriston 39.43N 120.03W
06/11/2023 M0.49 inch Nevada CA CO-OP Observer
CO-OP Observer station FARC1 2.3 NW
Floriston.
0700 PM Rain 2 SE Sonora Pass 38.31N 119.60W
06/11/2023 M0.50 inch Mono CA Mesonet
Mesonet station SRAC1 2.0 SE Sonora Pass
(SNOTEL).
0908 PM Rain 2 SW Washoe City 39.30N 119.83W
06/11/2023 M0.51 inch Washoe NV Mesonet
Mesonet station DVSN2 1.5 SW Washoe City
(RR) (RR) (RR) (RR) (RR) (RR) (RR) (RR) (RR)
(RR) (RR) (RR) (RR) (RR) (RR) (RR) (RR).
0905 PM Rain Glenbrook 39.09N 119.93W
06/11/2023 M0.52 inch Douglas NV Mesonet
Mesonet station FW9917 Glenbrook.
0908 PM Rain 2 WNW Sun Valley 39.61N 119.81W
06/11/2023 M0.52 inch Washoe NV Mesonet
Mesonet station CW6120 Reno.
0823 PM Rain 4 S Conway Summit 38.04N 119.17W
06/11/2023 M0.54 inch Mono CA Mesonet
Mesonet station UNDC1 Lundy.
0905 PM Rain Reno 39.54N 119.83W
06/11/2023 M0.55 inch Washoe NV Mesonet
Mesonet station GW1956 RENO.
0900 PM Rain 7 WSW Antelope Lake 40.13N 120.72W
06/11/2023 M0.56 inch Plumas CA Mesonet
Mesonet station KRKC1 6.7 N Genesee.
0907 PM Rain 3 NE Mt. Rose Ski Base 39.35N 119.85W
06/11/2023 M0.56 inch Washoe NV Mesonet
Mesonet station GPEN2 3.3 NW Washoe City
(RR) (RR) (RR) (RR) (RR) (RR) (RR) (RR)
(RR).
0905 PM Rain 2 ENE Verdi 39.53N 119.95W
06/11/2023 M0.57 inch Washoe NV Mesonet
Mesonet station 2236D 2 ENE Verdi.
0905 PM Rain Sun Valley 39.60N 119.78W
06/11/2023 M0.59 inch Washoe NV Mesonet
Mesonet station AS399 Sun Valley.
0700 PM Rain 3 WSW Conway Summit 38.07N 119.23W
06/11/2023 M0.60 inch Mono CA Mesonet
Mesonet station VGAC1 3.2 W Conway Summit
(SNOTEL).
0850 PM Rain 2 SSW Sun Valley 39.57N 119.80W
06/11/2023 M0.60 inch Washoe NV Mesonet
Mesonet station NNSC 2.3 SW Sun Valley
(DRI).
0910 PM Rain 2 SE Johnson Lane 39.03N 119.70W
06/11/2023 M0.60 inch Douglas NV Mesonet
Mesonet station DW8590 Minden.
0750 PM Rain 3 ESE Genoa 38.99N 119.80W
06/11/2023 M0.66 inch Douglas NV Mesonet
Mesonet station NCVA 2.8 NW Minden (DRI).
0847 PM Rain 3 WSW Carson City 39.15N 119.81W
06/11/2023 M0.67 inch Carson City NV Mesonet
Mesonet station KCLN2 Carson City Carson
City.
0905 PM Rain 1 NNW Reno 39.55N 119.83W
06/11/2023 M0.69 inch Washoe NV Mesonet
Mesonet station EW6551 Reno.
0700 PM Rain 5 NW Catnip Mountain 41.90N 119.44W
06/11/2023 M0.70 inch Washoe NV Mesonet
Mesonet station SHEN2 5.0 NW Catnip Mountain
(SNOTEL).
0800 PM Rain 1 SE Monitor Pass 38.67N 119.61W
06/11/2023 M0.70 inch Alpine CA Mesonet
Mesonet station MNPC1 1.0 SE Monitor Pass
(SNOTEL).
0903 PM Rain 5 NNW Spanish Springs 39.69N 119.75W
06/11/2023 M0.70 inch Washoe NV Public
0205 PM Rain 2 NNE Sparks 39.57N 119.72W
06/11/2023 M0.71 inch Washoe NV Mesonet
Mesonet station CW7672 Reno.
0912 PM Rain 6 NE Lahontan Reservoir 39.51N 118.99W
06/11/2023 M0.71 inch Churchill NV Mesonet
Mesonet station AU485 Fallon.
0900 PM Rain 2 ENE Spanish Springs 39.63N 119.69W
06/11/2023 M0.80 inch Washoe NV Mesonet
Mesonet station DW0026 Sparks.
0900 PM Rain 2 N Benton 37.84N 118.48W
06/11/2023 M0.85 inch Mono CA Mesonet
Mesonet station BETC1 Benton.
0910 PM Rain 3 ESE Stead 39.62N 119.83W
06/11/2023 M0.92 inch Washoe NV Mesonet
Mesonet station CW1177 Reno.
0853 PM Rain 5 ESE Gardnerville 38.92N 119.64W
06/11/2023 M0.96 inch Douglas NV Mesonet
Mesonet station FISN2 Fish Springs.
0840 PM Rain 4 NW Spanish Springs 39.67N 119.77W
06/11/2023 M1.02 inch Washoe NV Mesonet
Mesonet station DESN2 Desert Springs.
0907 PM Rain 3 WSW Westwood 40.29N 121.05W
06/11/2023 M1.13 inch Lassen CA Mesonet
Mesonet station AT488 Westwood.
0855 PM Rain Tahoe City 39.17N 120.14W
06/11/2023 M1.55 inch Placer CA Mesonet
Mesonet station TRTC1 Tahoe City Placer.
0600 PM Non-Tstm Wnd Gst 2 NW Reno 39.56N 119.85W
06/11/2023 M54 MPH Washoe NV Mesonet
Mesonet station NV013 Northwest Reno.
0431 PM Non-Tstm Wnd Gst 18 ENE Gerlach 40.79N 119.07W
06/11/2023 M55 MPH Pershing NV Mesonet
Mesonet station UP974 17.5 NE Gerlach (UPR).
&&The national radar mosaic for the moment the first event began.
3 heavy rain, 2 flood. Local standard time, as filed.
A mesonet station (KRKC1) located 6.7 mi N of Genesee, CA, reported a total rainfall amount of 0.56 inches.
A mesonet station (AT488-Westwood) located 3.0 mi WSW of Westwood, CA, reported a total rainfall amount of 1.13 inches.
A trained spotter located 5.0 mi WNW of Susanville, CA, and a mesonet station (BKOC1-Black Mountain) located 22.0 mi WNW of Spaulding, CA, reported total rainfall amounts of 0.71 inches and 0.69 inches respectively.
The CHP Truckee reported flooding located 1.0 mi N of Boca Reservoir that included mud along with the fall of rocks/boulders up to 5 feet diameter onto Stampede Meadows Rd. near Boca Springs road.
The CHP Susanville reported flooding located 3.0 mi of Cromberg, CA, of mud and water onto CA-70 near 2 Rivers Rd. Vehicles were able to get through the flood area.
After NWS Directive 10-1605, the rules offices file Storm Data by.
Every storm in California in 2023Every state in 2023This day in weather historyWarnings in California, June 2023
NOAA National Centers for Environmental Information, Storm Events Database, compiled from the National Weather Service’s monthly Storm Data. Complete through 2026-06; NCEI adds each month about 75 days after it ends and revises past years a few times a year. Rebuilt 2026-09-24. Each event’s entry at NCEI: 1140123, 1140122, 1140119, 1140120, 1140121.